Sidney



June 26,1923.

Re. 15,636 5; A. BEYLAND TELEFHONE SYS 'I'EM Original Fi-id June 2s,'191.5 s Sheets-sheet 1 INVENTOR {HONEY A. e rLAno.

ATTORNEY s. A; BEYLAND TELEPHONE SYSTEM Original Filed June 23 1915Sfiheeis-Sheet 2 INVENTOR SIDNEY A.BEYLAHD ATTORNEY June 26, 1923.

s. A. BEYLAND TELEPHONE SYSTEM Original Filed June 23, 1915 3 Sheets-Sheot 5 INVENTOR SHDHEY A. BEYLAHD Arronuzv number of stationsline,four having venience.

and useful Improvements invention.

embodiments of Reissued June 26, 1923.

UNITED STATES PATENT OFFICE.

SIDNEY KENT-S, "1'0 S'IBOMBERG-CARLSON ROCHESTER, NEW YORK, A

A. Burn-Ann, orfnoirs MEADOW; unw vonxfas'smnoa', BY MESNE Assron: aunrnouu MANUFACTURING COMZBANY, or coaroaa'rrou or NEW onx.

.rsnurnoitn SYSTEM.

Original no. 1,298,441,4atedihmh 25. 1919, Serial m. 35,757, filed June23, 1915. lpplic'atlon'itor T reissue med March 26, 1921.

e To all whom am concern:

Be it known that I, SIDNEY A. Bernese, acitlzen of the'Unite'd States,Lion Meadow, county of Monroe, and State o ew York, have inventedcertain new in Telephone Syste' s; and I do hereby declare the followingto be a full, clear, tion of the invention, such as will enable othersskilled tains'to make and use the same.

My invention relates to improvements in telephone systems-and has forone of its objects the provision of'means for releasing the ringingcontrollingmeans for further use, after the ringing connections has beencompleted. 4 I

Another object of my invention is to accomplish. the-above named objectin connection with a paratus forautomaticall signaling a su scriber, andalso for 'pl ar such means under the control of-thei calling switch.

Other objects of my invention will be clear t cul from a description ofan embodiment of the Figure 1 shows diagrammatically an embodiment ofmyinvention.

Fig. 2 is a modification of the embodiment showninFig'l.

- Fig. 3 is a second modification of the em bodiment shown in Fig. 1. y

Fig. 4 is athird modification of the em- .bodimentshown in Fig. 1.

Referring now to the drawings and to the my invention illustratedtherein, and first to the embodiment shown in. Fig. 1 at A is shown atelephone line which wil be spokenof in this specification as-"thecalledv line, leading from a plurality C. D and E. Any suitable may beconnected to this been shown tor.v con- Each substation is equipped withtalking apparatus and signaling apparatus. The talking apparatus isconnected in a of stations B,

bridge 1 and the signal; here shown as a bell,

is connected in the bridge 3. The line terminates at a main station F.

Means are provided at the main station for connecting telephone linestogether. such as connecting links, here illustrated as a cord circuitG, a portion only of which is. illusresiding at and exact deseripf inthe art to which it apperg ing keys, controlling Serialflo. 455,987.

trated in the drawing. Switching means, shown at H, are provided forconnecting the cord to the telephone line. In thefiembodimentsillustrated, this switching means consists of plugs and jacks,illustrated at p and J, respectively, in Fig. 1. sources of signalingcurrent, hereshown as generators I, K, Land M, are employed for aeratingthe signals at the substations. in he signals at the substations may beso (3011-. structed that they respond tooneparticular character ofcurrentonly,,;and the generators may be so constructed'that theywillselect A plurality of and operate the signalsat the substations.

Conductors are provided for connecting the sources of current to theline. Commutators 4, 5, 6 and .7 maybe connected in these con-- doctorsfor'the purpose. of intermittently associating the sources with thesignal so as to cause the operation of the signal at intervals of time.Signal at N, O, P and Q, here;illustrated asring- V the, connection ofthe sources, I, K, L and M A- master key or switch is shown at R, which.isoperated whenever any of the keys N, 0,1 or'Q. is operated. Relaysare shown I X and Y. When it is desired to'connect the source M with thecalled line, the switchH' is operated by insorting the plug p into thejack J. 1 The key Q, is then operated, operating at the same time thekey R and closing a relay through the contacts of the relay thecontacts'of the key R and the contacts of the relay S, which wasenergized'when .the

switch H was operated. The relay Y will be .energized, interrupting thecord circu connecting the source of current M to the called line. At thesame time, the relay Y completes a through the switch 8.,

locking circuit. for itself,

controlling means are shown in the signaling circircuit for the w Whenthe'master key Bis operated, a circuit will be. completed for theirelayW, which will disconnect the battery of keys N,

O, P, Q'and R from the cord 1 and complete a locking circuit for itselfthrough the switch 9.

that it does not operate until after the relay It will thus be seen thati will now be relieved of the cord circuit G dur- Y has operated. thebank of keys further service with The relay Wis so adjusted, 3

coiifiec'ting the source dei'stood from *a detailed 1 switch"31"relayjn-g strands 'of the 37 in thecirefiit of the-relay 38. The relayforming ecord circuit. When thecoirver sation has been completed and'theoperator" has withdrawn the plug p from the jackJ,

thwrelay'S will bedenergi zed and the system-restored to'norm'al'.

"If the subscriber wanted is provided with asignal'which responds tocurrent from the enerator L, the operator, after closing switch H,operates the 'key N, which will mpiite a circuit for the relay T, whichenergized, will connect the source 'L i'nthe ringing circuit, excludingthe source M The relay T will also lock itself up through a switch 11.Otherwise, the operation will be the same aspreviously described. Whenthe'ke'y O is operatedythe relay U will be energized, connecting-thesource K in the signaling circuit. When the key'P is operated, the relayV will be energized,

I in the circuit. Perhaps the-invention will be better u'n: descriptionof the tlrlgrition of the embodiment shown in g. "1. The operator havingreceived a' call over a calling line, not shown, and electedto use thecord circuitG, connects'theend of thatfia'rticularcord; circuit, notshown, with fli'vcallifig line 'and learns Hedi 'd. ihsslfinillg at,fatis the "subscriber thatit is the subscriber wanted, and that thesignal 2 be "totlie character of current"'proan 3 f tlieg'nerator M,theoperatoraf'ter testih e lineA and finding it, as we shall fibsuilfig, idle,"i'nseits theplug p into the jack J,'coiinp'lt-ing a,circuitfor the relay S as 1'2, cut-off relay 13=con- (it I41 c61itaet1;5 -'co'ndhct'or 16S"-batground 18. The relay S-will Be"e":iei'"1zed,closing the, switches 19, 2o, 21, e operator 'then'actuates the-'kby-Q,whieh through some such ber'is ai'swin'ging plate, a portion of which isillustrated at 25, closes the switches26'and 27fof thekeyR. 'Acircu'itisthus completed fr theirelay "Y, as follows: ground 'at 28 aw-(antiwar29condlictor "s0 Y'-conductor 32 sw'itc'h switch -34-"-switch 19-batte1y17:40 greener 18. The'relay Y becomes energized, opening a switch '36 inone of the'talkcord circuitand a switch -Y"blosesswitcliw'89"and' 40 inthesignaiing circuit and the switch 8, completinga lockfor a wholeopening the ringing circuit and re-' t thus completed is as follows:ground 18, 1 7-' switch 24-, Wswitch 42conductor 43 conductor 44key R toground: 28. The relay W will be energized, closing theswitch 9 andthereafter opening'theswitch 42 and interrupting'its connection with theconductor 43. Closing the switch 9. completes a locking circuit for therelay W from ground 44 through 9-the relay W and overt e circuit'asprevious'lytracedP The relay" also opens switches 45, 4'6, 47 and 31,cqmpletely disconnectingthe bank of keys N, and R from thewcord circuitG, there-by releasing the keys for use in connection with another cordcircuit, for example, cord circuit G. However,'if after the operation ofthe switch H the key Q, were operated, a circuit would be completed torthe relay Y and the source of c'urre'nt M would be connected to the lineA in the same manner as described in connection with the cord G andthe-lineA. If it is desired toope'rate the signal at G, thej'key P-isoperated, thereby completing a circuit-forfthe relay V as follows:1817-switch-23 V-switch 47-conductor 50-'conductor 51 key P to ground28. energized, opening the switch 52 and disconnecting the source M'from theconductor 5'3 and closing a switch 54,'thereby connecting thegenerator I -.to the conductor '53.

The relay V also closes a lo'ckin'gcircuit for itself, by closing theswitch 55, such locking circuit being from ground 56, through switch55'and the circuit for V, as previously traced. The closing of'the switch Rwill in the same manner cause the energi'zation'of the relays'W and Yand the operations with respect to theserelays will be the same asbefore. I

In case it is the subscriber -D that I is wanted, the'key OlS actuated,which-{will cbmplete -a circuit for'the relay U. The operation will bethe same as before. except that the sourceK will be connected in thesignaling circuit. Should it be desired to operate the signal at E,the'keyN is-actuated, which would complete a circuit for the relay T inthe same manner as was described for the 'relaysiUand V, theso-urce Lbeing this time connected in the signaling circuit. No matter which ofthe sources is connected in the signa'lingcirciii-t, its controllingcommnta'tor will intermittently associa'teaiid -disassodiate it with thecalling line, so that current will be intermittently The relay V isapplied to such. line to selectively operate the desired signal. Currentflowing through the relay X will, however, not be enabled lto61101115681101! relay until the subscriber terrupted by the which occurswhen therelay )S is deener- 1 ""gized, owingto'the interruption ofcuitby the opening of the switchH. The dedraws the-plug tem will berestored to normal, the relay ploy the. source le -operated nds,placingthe low resistance bridge,

IQS sue as illustrated at 1, acrossthe line and admittin such-a flow ofcurrent that the re- 1 lay X Wlll belo I about the relay erated, closinga shunt 1O which will relaseits contacts, interruptingthe signalingcircuit and restoring the talkingcircuit. the conversation,

At the end of a the operatonat F with from the jack J, when the beingdeenergized when itscircuit is in-. opening of the switch 24,

energization of therelay W again associates the-bank ofkeys with thecord circuit G.

In the embodiment shown in Fig. 2, the,

key N, is operated whenit is desired to em- M, for signaling. When N,the relay 100, 101 and Y, will be energized over the following circuits:for the relaylOO, ground 102-switch l03-conductor 104-conductor105-i-switch 106-- relay 100-conductor 107-'switch 108-bat-.

tery 109'-to-ground 110; for the relay 101,

I a lay fil -conductor for itself and aswitch as follows-ground102-,switch 111-c0n .ductor112-conductor 113- sw itch 1-14re- 115-switchl'16-battery 109-t o'ground 110; for .the relay Y,,

ductor 118-'conductor 11'9- --switch 120'- conductor 12l--Y,'- conductor,122-switch 123-switch 124-switch125-battery 109-- to ground 110. Allthree of these relays will be actuated, the relay 100 closing a switchand completing a self anrl closing a switch 131 in. the connections ofthe source Ma: The relay 101 closes a switch 132, completing a lockingcircuit 133, completing the connection of the source 134. "The relay Y,closes a switch 135, comin the circuit of the itself through nects thebank of keys from the cord circuit pleting a locking circuit foritself'to ground 136, interrupts'one of the talking, strands at 137 andcompletes and-197. This relay alsocloses a switch 139 relay W which isen or 'zed from ground 136-switch 139- re ay W -'switch 141-to ground110. The relay W completes a locking circuit for the conductor 142 anddisconby opening the switches 106,114 and 120.

when it is desired to connectthe source K, tothe called line, the keyO,is operated thereby causmg the energization of the relay over scribed,exceptthat it will now include the the same circuit as previouslydeswitch instead of the switch 103. circuit would also be completed -forthe renormal when the plug p,

its cir- 1 locking circuit for it- M, to the conductor relay the ringingcircuit at 138.

la Y,.through the switch 151 instead of 117. T e relay 1.00 will beenergized, closing the switch 152. and connecting the generator K, inthe circuit. Whenit is desired to connect the generator L, inthecircuit, the key P, is, actuated, completing circuits for the relays101. and Y,, through the switches and 161., respectively, and when it isdesired to connect the source I, is operated, completing a circuit for Ythrough connected, the automatic ringing will be substantially the sameas previously described, and the system will be restored: to the jack Jtherebyreconnecting the bank of keys to the cord circuit G,-. .7 In theembodiment shown in Fig. 2, it will be noted that no master key isemployed,

in, the key .Q

the switch 162. 'With either source is withdrawn from and that thecircuit connections are controlled through the actuation of theindividual keys alone. It will also be noted that the circuit of the keydisconnecting relay W, is completed by the relay Y, instead of beingcontrolled by the master key.

In Fig.3 insteadof employing a mechanically actuated master key, arelay'90 is em- 27 ,Each otthe keys N, O, P and Q, control acircuit forthe relay 90 through the ployed which controls the switches 26' andembodiment shown in Fig; 4, the

in the ringing circuit,-.the key Q, is operated,-'closingwa circuit forthe relay Y, from ground 200, through conductor 201- switches 202 and203,- relay Y -conductor 204+conductor 205now closed switch 206-battery207-to ground 208.- Th relay Y completes the ringing circuit as pre-11o.

viouslyvdescribed and also a circuit for the through the switch 209,theswitch 203and the switch 210,which'includes the source 207 and .ground208. The relay W will .disconnectthe keys from the cord circuit,releasing them for usewith other cords.

When the conversation isfiterminated, the

circuit of the relay W will be broken when the relay S is deenergizedwhich will'happen when its circuit is interrupted by the opening of theswitch H thereby re-connecting the keys to generators 1 K and L may beselected and connected in the. ringing circuit instead of thegenerator184,, through the operation of the keys N 0 and P and their controloverthe relays T U and V In each case,'the circuit of the relay Y willbe closed the cord circuit (3,. The

through the operation of anyone of these 7 relaysby the grounding of theconductor 220. In each case, as soon as the relay Y is said line,'asi

operated, it completes 'the signaling circuit andthe circuit for therelay W as previolisly described. In each case, the keys will bedisconnected from the cord Gr and 5 reconnected thereto in the mannerpreviously described. I

In the bottom of Fig. 4 a second cord circuit GQ is shown,to1llustratehow a cord circuit may be employed with the ke s dur- 1 in the use ofthe cord circuit Gr ii si na ing 'or talking. The cord circuit Gr is aduplicate of the cord circuit G and its op- .erjatiou "will be clear. 1I

I illustrated these embodiments of iny'inyention and the details showntherein forthe purpose of clearly describing my inyention, and not thatI wish to be limited thereto, as it will be apparent to those skilledinthe art that numerous and extensive de- 3 Emotes may be madev fromboth -the forms and details illustrated, without departing om" thespirit of the invention. I claim: 1. In a telephone system, thecombination of a plurality of "signaling circuit sections,

each including a. signal and another signalf ing circuit section,including a source of sigus ing current adapted to operate said signals,said last named section adapted .tobe

0 connected to each of the plurality of first named sections andcomplete a signaling --circuit, a. signaling relay controlling each circuiflr-a circ'uit "for eachrelay including contacts of a switch commonto the relays Mid means controlled by said switch for removmgsaid switchfrom thecircuit of a signaling relay whichhas been operated.

2. In a telephone-system, the combination of a signalin circuit, asource of signaling 49 current, are ay controlling the connection ofsaid source in said circuit, a circuit for" said relay, :1 switchin'said last named circuit and'means controlled by said switch fordiscomiecting said "switch from said relay L34 while thesourceofsignalingcurrent is convgnected in" the signaling circuit.

In a; telephone system, the combination I of a telephone line, asourceof signaling current, means ihcludinga relay for connectin said sourceto said line, a switch norm 1y connected to said relay controlling lithesameand asecond relay controlled by said switch-for disconnecting saidswitch from said first-named relay after the relay ha been operated.

. 4. Ice telephone system, the combination of a telephone line,& sourceof' signaling current, meanszincluding asignaling relay controlling theconnection of said source to alin'g'key normally connected to said signaing. relayna'nd control-ling the home, clocking circuit for said relayclosed when the same is operated, said locking cir- -cuitbeingilndependent of saidkey and a @105 fleco'ndfirelay controlled saidkey and a signaling key normally connected to said signaling relay, asecond relay controlling the connection of said key to said signalingrelay and a circuit for said signaling relay controlled by saidsignaling relay, said circuit being independent of the connectionbetween the key and thesignaling relay.-

6. In a telephone system, the combination of a plurality of telephonelines, a plurality of cord circuits, -a signaling relay associated witheach cord circuit, a signaling key normally conditioned toexercisecontrol over each signaling relay and means controlled by saidkey for removing from the control of said key each signaling relay whichhas been operated.

7. In a telephone system, the combination of a pluralityof-telephonelines, a-plurality of cord circuits, a signaling relay associated witheach cord circuit, a signalingkey normally conditioned to exercisecontrol over each signaling relay, means controlled by said key for'removmg fromthe control of said key each signaling relay whiclrh'asbeen operated, and means for automatically restoringthe normalassociation of said key With said relay when said relay is deener-H -8.In a telephone system, the combination of a plurality of telephonelines, a plurality of cord'circuits, a signaling relay ineach cordcircuit, a circuit for said relay, 3. switch common to said circuits,the circuit of each relay being closed upto'the contacts of said switch'when'the cordcircuit with which it is associated is'connectedtotelephone lines and means for removing said switch from the circuitofa signaling relay which, has been operated. K v

9." In a telephone system, the combination of a plurality oftelephonelines, a plurality of cord circuits, ;a signaling relay in eachcord circuit, a circuit for each relay, a switch common to all of saidcircuits, the circuit of each relay being closed up to the contacts ofsaid switch when its associate cord circuit is connected to telephonelines, a second relay controlled by said switch for disconnecting saidswitch from a signaling relay which has been operated, and a lockingcir-. cuit for said signaling relay independent of said switch andcompleted when said signaling relay is opera 10. In a telephone system,the combination of a plurality of signaling circuits, a plurality ofsources of signaling current, each adaptedto be connected in each ofsaid circuits, a signaling relay controlling each circuit, a switchcommon tosaid relays, acir- Quit tor: each relay. including contacts ofsaid'switeli, a second relay 2-for removing the 151 commentin switchfrom the circuit of a] ignalingrelay which' has been operated, and B alocking circuit for-said signaling-relay controlle by said signalingrelay. animate ephone system,the combination of a lurality oftelephdnelines, a signal on each inc, a source of signaling. 1 means to connectsaid source to each line, a signaling relay controlling the,connectionof gmds urce "to each line, saidflrelays including. common to saidrelays a second relay torre- 115 moving the contacts oi said Switch.from the operated and a locking circuit for said sigrelay controlleds'aid signaling .-reay.fl. m I L I 12. In'atelephonesystemJhecombination ofa pliiralityof cord circuits, a signaling of exercisingcontrol over said relays and v QYmfi-tieally removinglasignaling relayfroin 7 the contrOlofsEidkBY.

i tion ot a pluralityof. line connecting means, 1 asignalingrelay'associated with each'line i Y ;connecting means, a siahng key common i" i to a'plurality of sign mg relays normallyfcormectedflto said relays and .mechanism controlled by said key fordisconnecting said key from each of said relays.

I 14. In a telephone system, the combinaf tion' at a plurality ofcordcircuits a plurality or telephone lines, switches or con :[nectingthe cord, circuits to the telephone lines, a signaling relay associatedwith each cord circuit, a key common to a number 0 cords connected toeach of said-relays and mechanism controlled by said. switches and saidkey for disconnecting thekey from the signaling relays. e 15. In a telehone system, the combination of a plurality of telephone lines, alurality of signaling circuits, each inclu ing a portion of a telephoneline, a switch in each signaling circuit, electromagnetic ."means"associated with each switch con- 1T trolling each 'signalin "circuit,- akey norq mally connected to eac of said electromagwith: means andapparatus controlled'by said key 'said key from' the electromagneticmeans associated with the switch.

a trolling the same, a ringing key normally connected to the'ringingrelay, asecond re- .ylay normally connected to the ringing key,i said-second relay controlling y of the ringing I! looking circuit theconnection relay to the ringing key and a for each of said relays.

.norma ly connecting the ringing current and p a circuit for each ofvcontacts of a SWItCh of said rela circuit of a signaling relay which hasbeen mally relay, in each cord circuit, a signaling key i common to saidrelays and normally capable mechanism controlledhhy said key for auto-'13: In a i telephone system, the, combiner r and said switch fordisconnecting 16; In a telephone system, the combine- Jtion of a ringingcircuit, a ringing relay con-- In a telephone system, the comb ination'of a ringingcircuit,a ringing relay controllin the same, a ringingkey, aconductor key to the ringing relay, 9. second relay connectedito theringing 'key controlling said conductor and a switchin said ringingcircuit controllin each of said relays. i 18. n a telephone system, thecombination of aringing circuit, a ringing relay, :1 ringing-"key, aconductor normally connecting the ringing key to the ringing relay, asecond relaycont'rolling said conductor, each s being controlled by saidringing key an a switch in the ringing circuit controlling each .of saidrelays. I 19. In a telephone system, tion of a signal ng circuit,asignaling relay controlling the circuit, a signaling key norconnected tosaid relay, a second relay controlled by said key adapted todisconnectthe key from the signaling relay, a locking circuit forthesecond relay anda switch in the signalingcircuit controlling the lockingcircuit for'the second relay. "20. In telephone system, the combinationof a main station, a telephone line leading to ing telephone line andsubstation apparatus thereon, link conductors for connecting telephonelines the combinathe main station, a signal on said line, acalltogether, a. signaling generator at the main station adapted to theconnected toand to operatethe signal on the telephone line, arelay'associated with said link con ductors controllingthe connection ofsaid generator to said signal, a key for controlling said relay andmeansoperable independe'n'tl y" of the substation apparatus fordisassociating said key, from said link conductors immediately aftersaid'key has been operfated.-;

21. In a telephone system, the combination of a main station, atelephoneline leadmg to the main station, a signal on the telephone lme, linkconductors for connecting telephone lines togetherat the main station,

a ringing generator at the main station adapted to actuate the signal onthe telephone line,a ringing key at the main station controlling theconnection of the generator:

to said signal, said key normally having no control over the connectionof the generator to such 31 al, means at the main station for placin tecontr ol .of the generator over said signal under said key and manuallycontrolled means for automatically releasing the key foruse with othercord circuits as soon as-the ringing generator has been connected tosuch signa 22. In a telephone system, the combination of a plurality, oftelephone lines includin "a called line, a subscribers signal on said 4ca led line, link conductors for connecting "telephone lines together,aswitch for connecting the link conductors to the called line,

pl" said switch and mm cbmrouewb i the pablmof su' pefite thelsi glialbnt j, means in) ting s'aid soti ed linand sai pl'urfity ofoor has Ienop'enited 6f sai 'urr'en't to 0 '1' a Cbfinec r said switch and thecall I 111a a kj' common to a "IRENE after s'ifid z-zwitch "td'coiitiblthe 1m; Souk-ca to SI NEY Q 133mm),

